Process email attachments in Rails

process_mail_attachments.rb

# message is Mail::Message
# see http://www.rubydoc.info/github/mikel/mail/Mail/Message

message.attachments.each do |attch|
  f = Tempfile.new(attch.filename, Rails.root.join('tmp'))
  puts "  - Save #{attch.filename} to #{f.path}"
  begin
    f.binmode
    f.write attch.decoded
  ensure
    file.close
    file.unlink # deletes the temp file
  end
end